Plow



E. GRIIVISRUD.

Jam. 23, 1923..

PLOW.

oRlGlNAL FILED 1m31, 1920.

4 SHEETS-SHEEI l.

4 SHEETS-'SHED 2.

` E. GRIMSRUD.

PLOW.

oRlGlNAL FILED 1m31, 1920.

J an. 23, 1923.

r. m4 4| t, I Il E. GIRIMSRUD. PLOW Jan. 23, 1923.

ORIGINAL FILED JAN. 3l. 1'920.

4 SHEETS-.sum 4.

Patented ulian.. 23, i923.

EMIL GRJUVSRD, OF ANTELOPE, MONTANA.

PLOW.

Application filed January 31, 1920, Serial No. 355,314. Renewed June 28,1922. Serial No. 571.475.

L. 'o all 'whom fait' m ay concern Be it known that l, lnin Gniirsnun, acitizen ot the United States. residing at Antelope, in the county ofSheridan and `State oi lt/loi'1tana,` have .invented certain new anduseful improvements in Flows, of which the 'following is aspecrlication.

This invention relates in general to agri* culturalv implements and hasparticular ret` hcarn is clev ted to allow the plow to snap hack into anoiiierati ve position. and then at a ipredetermined intervalthereafter.' the heam will he released to allow the plow airain to inovedown into operative engagement with the ground.

Another object ot this invention is the production oi an attachment lorplows wherein the plow beam has a gage wheel standard pivoted thereonwhile means are provided upon the main trame of the device which extendto andcoact with the nage wheel standard so that automatically themechanism will he actuated for elevating' the outer end of the plowstandard and suihseouently allow the outer end to then he hovered.

nother ohjeot ot' this invention is the production ot means which may beeither automatically thrown into an operative po sition or manuallyactuated tor assuming; this conditionA whereby the gage Wheel standardmay he moved to cause the rage vrhec lo support the weight of the plowand plow beam.. either when necessary or deaired. y

line practical torni ot cmrstruction and .hly ot the 'iresent inventionwill he hereinafter described and is illustrated in the drawings, inwhichh Figure l is a top plan view of the entire device in condition foruse, a portion ota lever being shownin section. l

Figure 2 is a side elevation of a plow heam and connections thereof,with the main frame of the device being shown in section.

` Figure 3 is an enlarged fragmentary side elevation of the plow beamand operating mechanism coacting therewith.

Figure el an enlarged fragmentary detail sectional view ot a part of thedevice, diieclosino` specifically the construction of the meansconnectingthe Coulter wheel stamlard to the mechanism which is eitherautomatically or manually actuated for causingl a swinging' ot theCoulter wheel standard as will he hereinafter explained.

Figure 5 is an enlarged fragmentary sec` tional view on the line ofFigure l.

llinure is a rear elevation of the device shown in Figure 5.

*Figure i' is an enlarged fragmentary sec tional view taken on the line*LF-,7 o'f Figure 2. y l

Figure S is a. sectional top plan view 0f a. portion ot the device,taken on the line 8 8 of Figure 2. V

Figure 9 is a side elevationot` a certain cam wheel used in thisinvent-ion.

Figure l0 is a top plan view of the device shown in Figure 9.

Figure l1 is a fragmentary sectional view through a portion of thedevice.

liig'ure l2 .is an enlarged sectional View taken on the line lf2- l2 otFigure ll.

lFigure l?) is a rear elevation of the attarl'inient to the rear end otthe plow beam,

llliaure il is a sectional viewthrough a iorni4 ot' separable. plowpoint and mold hoard used in connection with the present invent ion.

Figure l5 a fragmentary sectional view of the device shown in Figure letwith the 'sections disassenil'iled.

lzl`ie'urc lll is a side elevation olla certain locking pin and leverused in connection with the device shown in Figure 14.

in the preferred emhorfliinent ot' the pres4 ent invention, about to bedescribed, the frame of the device comprises side bars 2O a front bar 21and a rear bar 22, the rear bar having a base flange 23 and it willfurther be noted, by referring to Figure l that this rear bar 22 extendsobliquely. Thus one of the side bars 20 is longer than the remainingside bar.

Supporting wheels 24 are mounted on stub axles 25 which are connected byplates 26 to supporting standards 2T through the medium of spindles 28to the side bars 2O of the frame. The drive wheel 29 is keyed upon anaxle 30 having a sprocket 31 thereon, the axle 30 in turn beingconnected by a plate 32 to the frame, as shown in Figure l. Clevisplates33k are connected to the front bar 21 and thus it will be seen thatdraft means may be applied to the trame to pull the same forwardly inview of the tact that the frame is mounted upon the wheels 24 and 29.

An obliquely extending bar 33 is mounted upon the frame as shown inFigure l, while braces 34 are connected to the rear bar 22 of the frameand the obliquely extending bar 33. A shaft 35 is journaled in one ofthe side bars 20 and in one ot' the braces 34 and has a sprocket 36 uponits outer end. A sprocket chain 37 passes about sprocket 3l and sprocket36 so that as the drive wheel 29 rotates, rotary motion will becontinually imparted to the shaft 35. A .second shaft 38 is journaled inthe braces 34 and has a sprocket 39 upon one end thereof, around whichpasses a chain 40, this chain passing around a similar sprocket 41 keyedupon the shaft 35. Thus it will be seen that as the shaft 35 is rotated,continuous rotary motion will be imparted to the shaft 38 upon which ismounted a ratchet wheel 42, whereby continuous rotary motion will beimparted to the ratchet wheel 42, for purposes to be hereinafterapparent.

The plow beams supporting bracket coinprises a body 43 which may besecured in any desired or approved manner upon the rear bar 22 oi' thetrarne. This bracket body 43 has a lip 44 extending from one ene., whilea projection 45 extends from the opposite end thereof parallel to thelip 44, the projection 45 terminating in an inwardly extending toot 46.The plow beam 47 is connected by a bolt 4S pivot-ally and somewhat.loosely with the lip 44. A brace 49 is fixed as shown at 50 upon theplow beam 4i' intermediate its ends, while this brace 49 is likewiseprovided with a foot 5l bearing normally upon the foot 46 ot thebracket. bolt 53 passes through the feet and has a coiled spring 54thereon the strength ot which normally holds the foot 51 in engagementwith the :toot 46. Accordingly, when side strain is brought to bear uponthe plow beam, it may swing slightly to one side since the i'oot 5l maydraw upon the bolt, against; the tension ot coiled spring 54 thuscausing the ioot 5l to move away slightly troni loot 46 to allow thelateral movement ot the plow beam at its outer end, although as soon asthis stress or strain is removed` the tension of the spring will besui'licient to return the foot 5l to its normal position.

The plow beam 47 has a pair of parallel strips 55 secured to its rearend, these stripsl being` in a sense an extension ot the plow beam.These strips, therefor, receive the upper end ot the plow standard 56which is pivoted thereon by the pivot pin 57. An arm 56 extends trom theupper end of they plow standard as shown in Figure 3, while a plowindicated at P is mounted upon the lower end ot' the standard It shouldbe nientioned that the particular part ot the device now being describedis referred to very particularly in the prior Patent Number l,253, 961.The standard 58 pulled by the spring- 59 in one direction has its nose60 engaging under the forward end ol the arm 56' oi the plow standard56. A. retaining claw `member 6l is pivoted upon the parallel strips 55ot' the plow beam 47 and engages the standard 53 within the notchesthereot when the device is in a con'ipletely set condition to hold thestandard 58 from being accidentally moved The trigger tube 62 engages`with the base ot the standard 5S and it is obvious this trigger tubewill be forced torwardly when the plow P strikes an obstruction and theconnection is broken, since the standard 56 swings rearwardly to causethe arm 56 to swing the standard. 53 against the tension ol'v the spring59, whereby the lower portion oi the standard 53 will. be. swungsomewhat counter-clock-wise to push the trigger tube 61 forwardly tor apurpose yet to appear.

A gage wheel 63 is rotatable upon the lower end ot the gage wheelstandard 64, thisI standard being received upon the, outer end ot ahollow shaft 65 as shown in Figs. 3 and ll. This hollow shait 65extendsl transversely through the plow beam 4T and is rotatablysupported. i trigger stem 66 is receivable in the rear portion ol thetrigger tube 62 and this stem 66 passes into a bore 67 in the rear endoi the plow beam 4T. This trigger stem 66 is connected as shown at 63 toa crank shaift 69 carried within the hollow shait 65. This crank shaft69 has an angular tingcr TO at its outer end projecting to one side otthe hollow sha''t 65 as lshown clearly in Figures 3 and ll.

A hollow channel bar T1, has` its rear end pivoted at 'T2 to the gagewheel standard 64. The Forward end oiE this channel har Tl is pivotallymounted as shown at T2 upon an actuating lever T3 which is pivorall'vmounted upon the shaft 36 as shown clearliin Ttigl'ure T. Tt will benoted that this actul ating lever T3 is biiincated as shown at T4 'glirear end, through which extendsthe linger 70 ottyheeranlrshatt 69. Thistinge'r passes `o'lflthis slide is provided with head 80 in the rear ofwhich ist'ormed vratchet `teeth 81.y `A."suitable spring pressed latch82 is pivoted `upon the ehannel bar `71 and is. adapted to 1,443,124 f yi `to receive the forwardfend of the channel -bar "f1 therethrough;`'This channel-bar therefor, connects "the actuating lever 73 td the'standard 64 so that, asthe lever 73 is `.pulled `forwardly it willnecessarily `cause the `channel bar 7l topulljt'orwardly on the i`standard 64: to cause the gage wheel 63 to be moved `t'orwardly andsupport the entire weight ot the plow beam 47 with all attach-A ments`thereof including the plow P.

yA slide? is reciprocally mounted within the channel. bar 71, this slidebeing held from "displacement by a slot and pin arrangement shown at `7Gor by any other suitable means.` Ulft Awill he noted that the channelbar 71-is provided with a slot `Z7 `contiguous to its through anaperture 78 formed in the `slide *75 sothat as this ringer is actuated,aswill be V hereinafter explained, the side may be moved\.rearwardl1y.,` although the slide is normally heldin a forward shiftedposition* and the linger i'0is normally held to slant forwardly by acoiled spring 79 engaged with the linger and withthe channel bar" asillustrated clearly inFigure 2. Thev forward end (i-.ngagethe ratchetteeth'- 81 for holding the slide ina retractedl position at certaintimes,

l as will be hereinafterapparent. i

A ratchet vdog 83 is pivotedl within the bifurcation 74 l oftheactuating lever 73' and has vjuidestrip- 84 extending ahovethe upper`sur acefthereol' as shown inlFigure 4l.

This `ratchet dog"83` has ai tailI 85 which is "carried under the springpressed catch 82 as shown in several figures ofthe drawing.

nqjiair of parallel quadrants` 86 arecarried `upon the frame uponopposite sides ot the `actiuilting lever 73 als' shownin Figures l 7and. A hand lever S7 pvotedI upon the shatt BSQupen onesideOrione/quadrant `as `i'ehilnii' ot the (traine.

shown; A `housing 8S is carried' upon the` lever 97 and over-hangs" thequadrants 86;` n. detent plate 89 is movablethr'ough the housingA 88 andmay be actuatedby the grip 90 and `connecting` strand 91 as shown inFigure Q. ltwillhe @noted that the detent lis carried iu the rear ot'actuatinglever '-l, and that it may he lifted moving' the grip 90 towardthe h andle ot `the hand lever `97,sonstomove out otengagement with theFigure 5. rlhis `lever 9e has a pawl 95 pivoted thereon and passingrearwardly through a slotted plate 96, 'forward movementoitthe lever 9ebeing limited by a' chain 9T connected thereto and connected to theslotted plate 96. Thus it will be seen `that as the lever 911- is rockedYforwardly i'otary motion will he .imparted to the ratchet wheel 93 tothe cam wheel .shaft 92?, while rearward swinging of the lever 94e willcause Vfthe pa'wl 95 to ride over the surface of. the

ratchet wheel 93 without rotating the saine. As will he seenby referringto Figures 9 and -,a suitable Yforni of cam wheel 98 may be keyed uponthe sha'lt 92, in this instance the camjwheel being provided by cuttingaway a part of the vperiphery of the wheel `asshown particularly in`Figure 9.

` A cam lever 99 is pivoted upon the actuating lever 73` whose rear endnormally engages the forward portion oi the eamwheel 98yto be held in alowered position,` although such end is urged upwardly by a coiledspring' 100 connected to the cam lever 99 and to the actuating leverT3-as shown in Figures 2`and This cam lever 99 has a` slide 101connected thereto from which extends a pin 102; A pin 103 isycarried bythe ratchet dog 83 in the path of movement of the pin `ln operation theplow P isheld in operative position by the nose ot the standard 58engaging under the end of the arm 56 as shown in Figure 3. At this timethe standard is held against accidental swingtlhereol',,` as explainediiliully' in my 'prior Patent Number 1,253,90l. Atthis time `also thehead` 80 ol' the slide 75 is `forward. ot the ratchet dog 83 as shown inFig-ture 4l.

rlhere't'ore, the tail 85 of the ratchet dopl 105 will cause this dog tobe held `out ot fen- `'gagement with therat'chet wheel LLL, There-`tore, afs the traine moves forwardly and the drive wheel :'29 isrotated, rotary motion will be impartedby` the chains l an d 40 and the1w yshafts 35 and 3S continuously to the ratchet wheel L12. llt thistime, it desired the claws y 61 may have a lug 104e carried upon a pivot`as illustrated 1n Fig. 13. An arm 105 may be keyed upon the remainingend of the `tuhe i 65 so that when the device is in operative positionand the claw is engaged withthe notches 1n the standard 5th the lug`104C may engrigi-i the finger 105 and thus hold the gage-im wheel`standard. 04!! against upwardswing- 120 `ing. whereby this Coulterwheel may travel in front ot' the plow to limit the movement of the'same into the ground to regulate the depth, oit the digging actionthereof.

lt should also be understood that at this time the-enlarged portion oitthe cam wheel 99 should be engaged with the cani lever 99' holding thesaine dowi'iwardly at its rear end and thus causing the slide 101 to beheld in a lowered position whereby the pin 102 will 13o ing by the claw6l. engaging within notches 100 standard 58 will cause the lower end tomove in a counter-clockwise direction,'thus forcing the trigger tube 62forwardly and consequently forcing the trigger 66 forwardly. is seen inFigure ll, when this trigger 66 is forced forwardly, its engagement withthe crank shaft 69 will roch the crank shaft so that the linger 70 etthis crank shaft will pull rearwardly upon the slide 75. As the slide 75moves rearwardly, obviously its head will likewise move rearwardly andwill engage the guide strip 84, thus swinging the ratchet dog 83 intoengagement withA the rachetv wheel l2 which isl rotating` asabovestated. As the slide is moved 4rearwardly the l spring catch S2 willengage with one of the ratchet teeth 8l of the slide thus holding;l theslide against forward movement so that the head 80 will continue to holdthe dog 83 in engagementy with the ratchet wheel. rig

' this wheel rotates it will pull the dog' foe wardly therewith andobviously as the dog' is connected to the actuating lever 73, this jactuating leverl will be pulled forwardly,

thus pulling` forwardly on thechannel 7l and in turnfswinging,` the gagewheel standard (Seil toward a vertical position so that the plow beam alwill be supported and will be carried by the movement of the gage wheel63 over` the surface of the ground. This action just stated issimultaneous with the breaking of the plow as stated. lnv my priorpatent it was necessary to stop the plow after it was' automaticallyhrolren in order that the loeam could be lifted and the plow reset.

ll/Vith the present device however, as soon as the plow is broken thebeam is elevated at its rear end, thus allowing the plow suhficient timeto swing` hack, due to its own weight, causing;v the arm 56" to againpass the nose`r causing` the nose to snap under the arm and allow theplow to be again held in a set and operative condition; i

is the plow :beam continues `lo move forwardly on the ratchet dog 83, itwill he seen that the tail of this ratchet dog will finally strike thelower projecting end ot the spring catch thus swinging` the catch fromengagement with the ratchet teeth Sl. New as a springfil engages the^tin'er T0 it will he seen that this spring will pull the finger TO.thus shittingv the slide 75 forwardly, wheichy the head 80 will he movedfrom engagement with the `guide strip 84 of the ratchet dog S3. As norestrainttherefor, is on the ratchet dog it will immediately swingupwardly `from engagement with the ratchet wheel 42 so that furthermovement of the ratchet dos;` and the ratchet wheel is discontinued. Asno restraint, therefor, is upon the actuating lever 73, the. weight ofthe plow beam and plow being,r imparted to the standard 64- the gagewheel G3 will cause the standard Gel to swing rearwardly, moving`rearwardly on the channel bar 7l and moving the actuating lever 73rearwardly or until it strikes against tho housing; 8S of themanually'operated lever 87. ',Fhcreforc, the plow will again enter intothc `ground to porform its operation. Frein the operation described, itwill be seen that as soon as the plow is automatically broken the beamthereof is practically simultaneously raised :it its rear end to allowthe plow to swing bach lo lisnorn ial set position rand almostsimultaneous to this act-ion, the beam is again lowered by the trippingmechanism above explained, whereby the plow may again enter itsoperative engagement with the `Lormund. llhoucrh some little time hasbeen consumed in explaining the operation of the device, which is of theautomatic nature. it will be understood that it will he very rapid,requiring;` only probably two or three seconds that the plow will clearthe ohi it originallystruck and will then move ioswardly again in properengagement with the ground.

lf for any reason the operator of the dcvice should desire to elevatethe plow from engagement with the l`ground he merely has to swing thehandle lever S7 forwardly causing` the housing SS to pull upon the upperend of the actuating lever T2-l, whereov vthe actuating`- lever willpull forwardly upon the channel bar 'Tl and then swingr the `gage wheelstandard (lll forwardly lo cause the wheel to support thc plow beam andplow. The plow beam may hc held in an elevated condition as long asdcsired, since the operator may cause the dctent 89 to engage withinselected notches in the Aquadrants S6 as is apparent. Ot course, as soonas the manually operated lever 8"? is swung rearwardly, the actuatinglever 'l' will more rearwzn'dly and thus thc channel hai' 7l will moverearwardly lo allow the gage wheel standard to move reardownwardly toallow the plow to again cugage the ground.

@wing to the broad construct-ion ol' the frame, as Shown in Fiourc i andthe inanner in which the rear Vruard 22 is slanted obliquely, it isapparent that several plows may be supported upon the device, side h vside as is' apparent, for instance. bj.' the disclosure of a. pair ofcam plates 9S. Under wardly and thus the plow beam l- T may1 move lowill a .into' `its "operative intensa p `euch eoinditioiii however-witwill be apparent that.theplows will beni oblique arrangeinentwitlrrespect to each other7 one 2rd-,

vanced slightly` `.'lmward oit the other, ac-

?5 .cordifng to the` nnniher yot plows arranged *across the reas'portion ol" the trame.v ln

view el: thetaet that all plows will be ot similar` construction and`their `.operating mechanisms `would be similar, in order `to 10 avoidconfusionyonly one plow and its operating rnechanisinshave beendisclosed. New il` the plows have moved `across the i fieldwithoutstrilring any interferences, as

4the machine arrives atthe end of the field and it `isdesired to reinovethe plows troni engagement with the ground as theyarrive at the endoilthe field the operator oscillates thel lever 91 illustrated inlligs.5 and 6,

thus causing the wheel 93 to be rotated and 2o consequently causing thecam shaft 92 to be rotated. is this cani shaft rotates obviously itrotates the Ycani wheelinounted thereon and as` is apparentfgtrorn aninspection ot .Figure 3, as the `large part et a `earn dis- `ile engagesits `canileveripQgQj the `spring 100 of such cani f lever will swing"the saine up` wardlyjcausingthe slide 101 to inoveupywardly;wherebythepin 102 will strike the` lpin 103 oii the ratchetdog 83. inoving this dog `into engagement with the ratchet wheel thuscausing the lever` no to be swung i forwardly with the result aboveexplained. .Oft course, the operator may continue to losA r.cillate thelever 96E and thus the `cani shaft aiwillcontinue toprotate until thecani again engages the cainlever 99, thus 'forcing theI sainedownwardly,` wherebywthey `slide will i niovedownwardly and the pin102will dis-i engage the pin 103 whereby the ratchet dog Oain disengagethev ratchet wheel 4t2, aus allowing the plowbeain t7 to againinovedownwardly atiits rear end, 'for the lusualpurposes.\` i l y 1Itisapparent that whenthefplow is i115 automaticallybroken, the rear endoffbeam 4i will Inoveslightly-'lateral to `also absorb "the shoclrowingto the fact that the brace 4119" will lpull uponlthle bolt 53 againstthe ateiisionofcoiledspring 4145 as shown in Fig i UV `1 to all@ w thisaction:although as soon obstructionis j eassed7 the spring will `againpull upon the belt to return 'the .'Eeot51with norinall engagement ith:toot

`k j ltwill thereforebeapparent that a very l simple and1alii.cientinsane iszprovided 1to1.'

go eratingthe Coulter wheel standard which. all `elevate theplow beaniautomatically p will again `swing to allow the plow to pass y ground. l.

Ttiatewheeem Seliematieallreternel.

as above stated so' that the operator may continueto` operate the deviceseveral plows operating simultaneously with any plow striking anobstruction `autoinatreally brealring and then automatically returningto an operative engagement for further `operation as stated. Theoperator may also inanually pull the gage wheel standard to apositionwhere the plow will beinoved `downward in ciigageinentwith the groundfor when arrivingat the end o1E a row, `he may operate the `cani shaft92 to cause automatic lifting of the plows after the cani wheels havedisengaged their cam levers. Thus a comparativelysiinple deviceofthepresent nature has been produced which is capable of functioninginseveral ways Jfor moving the plow `from engagement with the ground.

By referring to Figures letto 16 inclusive a i'orrn of plow which'inight be used in connection with the present device is illustrated..

ln this construtcion of a plow the slide 106 has the usual point 107uponwhich the base section 108 et the mold board is carried. This basesection 'is providedwith undercut lugs 109 secured thereto inany desiredmanner.` The upper section 110A of the mold board has a wing section111, this upper 'sec'- tion-110 having a plurality of upwardly and`rearwaiwlly slanting slots 112 formed` therein.

Jalso a sectional retaining stripll is carried by this upper section110eXtending beyondeach side ol'i each slot as illustrated clearly inFigure `15. `ln asseinblingthe device, thelupper section 110 is placeduponk the basesection 108 by the passing ofthe lugs 109 into the slot112. The lugs passthrough the inner` ends of theslots'and 'for this rea-`son are slightly above the sectional strip 113.

A. locking `pin 114: will thenbe slipped below `the lugs and above thestripllas shown in Figure ligand then aretaining lever 115 is employed.`This lever is provided with a head 116 at its lower end adapted'to fitwithin a socket `117u The lever assumes the position as shownapproximately `in Figure 1b with its head 110in the socket 1171,whereupon the lever will be swung 'iforwardly, acting as a iiulciuin forforcing the pin 114C far into the engagement with the lugs 109 and astrip 113. The lever may/then be swung into a gripping ineinber llwhiehwill eiliciently holdthe sarne against accidental displace. nient, klitcourse the plow7 referred toin several figures of thedrawing "and ingen- `eral at Pinay be.securedk tothe vlower end oil standard 56` in anydesiredinanner.

s The-foregoing description and [the draw ings have reference to thepreferred or approved embodiment of; my invention; lt is to beunderstoodhowevernthat I may. make `such changes in construction `andassembly et parts, materials. dimensions, etc., as niay prove expedientand `tall within the scope of theaereefled l'l'aving thus fullydescribed my invention, what I claim as new and desu-e to secure by'Letters Patent is l. ln a device oli *the character described.,

the combination ol a iframe, a plow beam 'pivoted upon said traine, andIncluding a plow thereon, means 'f'or automatically breaking theplow, agage wheel stainlard pivotedluponv the plowbeam and having` a gagewheel, 'an actuating` leverpivoted upon said frame,fa har connecting,`said standard to said lever, a ratchet wheel rotatable upon 'said trame,means for driving the ratchet wheel, a ratchet dog carried by said actuating,- lever, and means operated 'by said plow-breakingr means formovingvthe dog into engagement with said ratchet wheel subsequent totherelease of the plow ior causing "the lever to move to ull uson saidchannel bar and swing said nage wheel standard, for

.elevating the said plow beam.

I 2. In a device o'l1 the character described,

the combination oli a main frame having a ratchet wheel thereon and.means for continuously driving` the ratchet'l wheel, a plow beam pivotedupon said trame and including anl automatically broken plow` a gagewheel standard pivoted upon the plow beam, an actuating'lever pivotedupon said trame, a bar' connecting` said. standards to said lever, aratchet dog pivoted upon said lever. and Vmeans interconnecting the saidautomatically brokenplow and the said actuating` 'lever operated by thetormenfor autemati` cally moving said ratchet dos; in to engagementwithV said ratchet wheel, and means for releasing' said dog' fromengagement with said ratchet wheel.

' In a device of the character described, ythe combination of mainifran'ie having` a A driven'ratchet wheel thereon, a plow beam pivotedupon said main frame and including fan; automatically'brokenand resetplow, of

ard and said actuatin@ able within the head positioned cranlr shaft car.

.having a linger'engaging said slide. trio;-

,l r connected to the cran-lr shaft and associated with the automaticplow. wherebv 'when theplow is broken, said trigger will move the shaftto cause said slide to be moved, whereby the head will engage theratchet dopr to move the don; into engagementfwith the ratchet wheel,thus causing' vv'the lever to pull upon the channel bar and ,swing thelfrage wheel standard, as' and for thepurposes setforth.v i

4. `In a' rdevice of the character described, thecombination of a framehaving a driven vwheel s ratchet wheel, a plow beam pivoted upon saidtrame and including an automatically broken and reset plow, a gage wheelstandard pivot-,ed upon said plow beam7 and havinnl a roar wheel, anactuating lever pivoted upon said iframe and having` :i ratchetdogpii'otcd thereon, s channel bar pivoted upon said standard and uponsaid lever lor connecting the same together, a slide movable within saidChannel bar and having' a head for engaging said dog, moans associatedwith said automatic plow for istinp," said slide as the plow is broken,wherebj,Y the head will be moved into engagement with said ratchet dog,a spring catch engaging said slide tor holding the same againstaccidental movement, whereb)7 the ratchet dog will be held to move saidratchet wheelA` 'to cause the actuating lever to move thereby pullingupon said channel bar and said gage wheel standard, until said dogstrikes said spring catch, whereupon the catch will release the slide toallow the slide to anain assume its normal position and the dogg' todiseniiagc the ratchet wheel, as and for the purposes set forth.

l5. In a. device of' the character described, the combination of a tramehaving a driven ratrhet wheehan actuating; lover pivotod upon saidVl'ranie and having a ratchet dog inovided with a pin, a plow beampivoted upon said frame and having a plow. a gap-e. idard, a barconnectingsaid stand ard to said actuating,r lever, a cam lever pivotcdupon the actuating lever and having a slide provided with a pin, meansfor forcing' the cam lever in one direction. a cam-shaft having a camplate thereon, moans 'lor rotating the ani-shaft, said cam plateengaging the cam lever for normally holding the same in assembledposition, said cam plate being rotated at times to allow the lever tomove the slide to allow the cam lever to move the slide whereupon saidlast mentioned cam will engage the {irst mentioned pin to swing saidratchet den; into engagement with the ratchet wheel, whereby theactuating' lever will be swung o incvethe bar to swing; said gage wheelln device of the character described, coi ,b on of frame having a plowbeam pivl, thereon and provided with a plow` an actuating lever pivotedupon said trame al wheel standard carried by upon said trame. andhaving,r detent means .tor engaging said quadrants to hold themanuallyoperated lever in an adjusted position, said manually operatedlever being adapted to be swung to swing said actuab,

ing lever whereby the actuating lever will ndardi as and tor thepurposes set forth..v

ill)

llt

llO

draw upon the bar to stralingv said gage wheel standard, as and tor thepurposes set lorth.

7. ln a device of the character described the combination of a trame, abracket carried upon said frame and consisting of a body having a lip atone end and a projection at theren'laininp; end, the projectionter1nihating in an angular toot, a plow beam having a plow7 said plowbeam being` pivoted upon said lip, a brace connected to said plow beamand having -a 'toot engaging` said `first `mentioned l'oot and spring`pressed means b n a waffe wheel standard and 0awe wheel 1 f f?) i t TFpvoted to the beam, a lever pivoted on the frame, a bar connecting saidlever with the gage wheel standard and slidable means moval'ilereverse/lr with respect to said bar, "whereby the lever is actuated tocause the said beam to be elevated when the plow strikes an obstruction.

D. In a device of the character described the combination of a trame, aplow beam pivoted to said iframe includingV a plow oar ried thereby. agage wheel standard and gage wheel pivoted to the beam, a continuouslyrotatable ratchet wheel on the frame a lever and dog` mechanismcooperatingwith said ratchet wheel7 a bar connecting said lever ywiththe gage wheel standard, and means reversel7 slidable with respect tothe bar whereby the ratchet and dog mechanisms are operated. to peri'nitthe standard to be raised and lowered when the plow strikes

